I would reccomend doing a 5 day on two day off cycle of tribulis...that is what t-mag(makers of tribex 500) suggest and it seemed to work well. The stuff did seem to work but I am sure it will lose it's potency if you took it everyday...and instead of having to take a week or two off of it, you can just take weekends off and get the same results I think. You can read more about this at www.testosterone.net just type in a search for tribex or look through the products, they have a pretty good article on tribulis.